Answer:
13
Step-by-step explanation:
Answer:
113 / 20
or
5.65
Step-by-step explanation:
= 9 2/5 - 3 3/4
=
- ![15 / 4](https://tex.z-dn.net/?f=15%20%2F%204)
= ![188 - 75 /20](https://tex.z-dn.net/?f=188%20-%2075%20%2F20)
=![113 / 20](https://tex.z-dn.net/?f=113%20%2F%2020)
=![5.65](https://tex.z-dn.net/?f=5.65)
So if the lawn sprinkler rotates in a circular motion, then what you're left with is a circle with a radius of 5 feet. You can then just use the formula Area = π × radius^2 to do π × 5^2 = 25π = 78.5 feet^2. I hope this helps!
Y = 1/2x + b
Plug in the point :)
-9 = 1/2(-4) + b
-9 = -2 + b
b = -7
Y = 1/2 -7
3/4x + 3 - 2x = -1/4 + 1/2x + 5
Put in terms of 4 as denominator
3/4x + 12/4 - 8/4x = -1/4 + 2/4x + 20/4
Combine like terms
-5/4x + 12/4 = 2/4x + 19/4
Simplify
12/4 = 7/4x + 19/4
-7/4 = 7/4x
x = -1 :)
Check:
3/4(-1) + 3 - 2(-1) = -1/4 + 1/2(-1) + 5
-3/4 + 3 + 2 = -1/4 - 1/2 + 5
-3/4 + 5 = -3/4 + 5
-3/4 = -3/4 :)